Comparative analysis of the antennae of three amphipod species with different lifestyles

Urbschat, Naomi; Scholtz, Gerhard

doi:10.1016/j.asd.2019.100886

Cited by 6 publications

(2 citation statements)

References 91 publications

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“…Sexual dimorphism in the crustacean antennule is generally not as common or apparent as in the olfactory organ of insects (Hallberg et al, 1992(Hallberg et al, , 1997Galizia and Rössler, 2010;Derby and Weissburg, 2014). But there are reports of sexual dimorphism in aesthetascs and other setae, such as males having more numerous or larger aesthetascs than conspecific females (Hallberg et al, 1997;Boxshall and Huys, 1998;Thiel, 2011;Urbschat and Scholtz, 2019).…”

Section: Structural Diversity Of Antennules and Their Setaementioning

confidence: 99%

The Crustacean Antennule: A Complex Organ Adapted for Lifelong Function in Diverse Environments and Lifestyles

Derby

2021

The Biological Bulletin

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The crustacean first antenna, or antennule, has been an experimental model for studying sensory biology for over 150 years. Investigations have led to a clearer understanding of the functional organization of the antennule as an olfactory organ but also to a realization that the antennule is much more than that. Across the Crustacea, the antennules take on many forms and functions. As an example, the antennule of reptantian decapods has many types of sensilla, each with distinct structure and function and with hundreds of thousands of chemosensory neurons expressing hundreds of genes that code for diverse classes of receptor proteins. Together, these antennular sensilla represent multiple chemosensory pathways, each with its own central connections and functions. The antennule also has a diversity of sensors of mechanical stimuli, including vibrations, touch, water flow, and the animal's own movements. The antennule likely also detects other environmental cues, such as temperature, oxygen, pH, salinity, and noxious stimuli. Furthermore, the antennule is a motor organ-it is flicked to temporally and spatially sample the animal's chemo-mechanical surroundings-and this information is used in resolving the structure of chemical plumes and locating the odor source. The antennule is also adapted to maintain lifelong function in a changing environment. For example, it has specific secretory glands, grooming structures, and behaviors to stay clean and functional. Antennular sensilla and the annuli on which they reside are also added and replaced, leading to a complete turnover of the antennule over several molts. Thus, the antennule is a complex and dynamic sensory-motor integrator that is intricately engaged in most aspects of the lives of crustaceans.

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Section: Structural Diversity Of Antennules and Their Setaementioning

confidence: 99%

The Crustacean Antennule: A Complex Organ Adapted for Lifelong Function in Diverse Environments and Lifestyles

Derby

2021

The Biological Bulletin

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“…Chemoreception is the dominant sensory modality for most crustaceans due to the complex aquatic environment (Harzsch and Krieger, 2018), which is the base of crustaceans for their daily activities, such as searching for food, reproduction, and communication (Blinova and Cherkashin, 2012). Previous studies suggest that the antenna is one of the predominant chemosensory organs of most crustaceans (Harzsch et al, 2011;Waldrop, 2013;Urbschat and Scholtz, 2019). Crustaceans receive chemical signals through several parallel channels, which can be summarized into two modes of "olfaction" and "distributed chemoreception" (Schmidt and Mellon, 2011).…”

Section: Introductionmentioning

confidence: 99%

Comparative transcriptomics analyses of chemosensory genes of antenna in male red swamp crayfish Procambarus clarkii

Zhou

et al. 2022

Front. Ecol. Evol.

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The red swamp crayfish, Procambarus clarkii, is a globally invasive species and has caused huge damage to aquaculture, biodiversity, and ecology worldwide. Antenna-expressed receptors are important for P. clarkii to detect chemosensory cues for mate attraction. In this study, we tested the behavior of male P. clarkii to the conditioned water from female P. clarkii during the mating and non-mating periods, and performed RNA sequencing to investigate the chemosensory-related genes of the antenna of male P. clarkii. The results of the behavioral assay have shown that for the female-conditioned water, male P. clarkii within the mating period can be significantly attracted, but not during the non-mating period. This suggested that the expressions of chemosensory-related genes in the antenna of male P. clarkii may change significantly with mating seasonal variation. Antenna transcriptomes found that a total of 59,218 unigenes with an average length of 1,056.41 bp, and 4,889 differentially expressed unigenes (DEGs), among which 2,128 were upregulated, while 2,761 were downregulated were obtained. A total of 12 upregulated and nine downregulated DEGs were associated with chemical reception, including four ionotropic receptors (IRs) or ionotropic glutamate receptors (iGluRs), eight G-protein-coupled receptors (GPCRs), five transient receptor potential channels (TRP channels), one sodium–calcium exchanger, one isomerase, and two uncharacterized proteins (chemosensory proteins-like, CSPs). CSPs were preliminarily classified as pheromone receptors in the antenna of male P. clarkii. Furthermore, the calcium transduction-related pathways may play an important role in the sex pheromone reception of the male P. clarkii’s antenna. The results of quantitative real-time reverse transcriptase PCR (RT-qPCR) showed that the trends of expression of eight selected unigenes were consistent with RNA-Seq results. Our results provide more comprehensive data for chemical communication mechanisms after P. clarkii enter the mating period and eventually would develop better control strategies in further.

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Mutualistic relationship between the amphipod Stenula nordmanni (Stephensen, 1931) and the nephtheid coral Gersemia rubiformis (Ehrenberg, 1834)

et al. 2021

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Comparative analysis of the antennae of three amphipod species with different lifestyles

Cited by 6 publications

References 91 publications

The Crustacean Antennule: A Complex Organ Adapted for Lifelong Function in Diverse Environments and Lifestyles

The Crustacean Antennule: A Complex Organ Adapted for Lifelong Function in Diverse Environments and Lifestyles

Comparative transcriptomics analyses of chemosensory genes of antenna in male red swamp crayfish Procambarus clarkii

Mutualistic relationship between the amphipod Stenula nordmanni (Stephensen, 1931) and the nephtheid coral Gersemia rubiformis (Ehrenberg, 1834)

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